Help to configure ethernet for downstream switch

Help to configure ethernet for downstream switch

Help to configure ethernet for downstream switch
Help to configure ethernet for downstream switch
2025-06-03 09:35:53
Model: TL-SG3428  
Hardware Version: V2
Firmware Version: 2.0.3 Build 20210409 Rel.52950

Ok, it seems I am making a hybrid network with some parts being "big end" and some "low end" devices.

 

I can only work with what I have.

 

I have the 24 port switch with one (the first) ethernet as the "TRUNK" from the Edgerouter with VLANS.

 

Now the other 16 port switch is connected to the Edgerouter also.

So from the Edgerouter's point of view:

eth1 - 24 port switch (VLAN)

eth2 - 16 port switch (VLAN)

 

I'd prefer to have the 16 port switch plugged into an ethernet port of the 24 port switch and not going back to the Edge Router - as is now.

 

But I don't know how to do this magic on the 24 port switch.

 

Basic config:  (24 port switch)

Eth0 (the first one) is the TRUNK and is the UPLINK.

There are several VLANS (802.1) on the remaining Eth ports.

 

The idea is I sacrifice one of the remaining 23 and use it to connect to an ethernet port of the 16 port switch.

TL-SG1016DE 3.0

 

So it would be something like:

Edgerouter --> VLAN --> 24 port switch eth0   ethx --> VLAN --> 16 port switch eth0

 

I'm not sure "MIRROR" is the right thing and I feel it isn't the way to go.

 

  0      
  0      
#1
Options
4 Reply
Re:Help to configure ethernet for downstream switch
2025-06-04 02:41:36

  @Andrew_from_Oz 

I don't understand what you want to do. Isn't this similar to the previous post? VLAN config which there are guides.

  0  
  0  
#2
Options
Re:Help to configure ethernet for downstream switch
2025-06-05 09:24:28 - last edited 2025-06-05 09:27:40

  @Clive_A 

(Sorry not at you.)

 

I see/saw 4 notifications.

 

You (three times.  No worries) and .... MR.S?

(Sorry, I'm new here)

 

When I click on ANY of the reply notifications all I get to see is your ONE reply.

 

I'm confused.

 

Ok, to what you asked:

Isn't this the same as the other post?

 

well, yes - and no.

 

The first post was to get the 16 port switch set up with VLANS.

 

Got that working, and thanks.

 

So the next "step" is to connect it to the network.

 

As a "BASE LINE" I used a spare ethernet port form the EDGErouter and copied the "existing/working" one to the spare.

Then I plugged the switch in and it worked.

 

Nice.

 

But it would be nicer - cable wise - to not plug it in the ROUTER, but the existing 24 port switch I have.

(It is going to be an extension of the existing switch)

 

So, the existing switch has a TRUCK input and it's other 23 ports are VLAN'd out as needed.

What I want to do is make it 22, and the one I "stole" would become a ...... bridge (which I think is a better term) and an output (to call it) that goes to this 16 port switch.

 

Clearer?

 

Oh, ITMT, my local LAN has gone to h*ll in a hand basket and I am in damage control mode just now trying to get it working agian.

 

To clarify:

The first post was asking for help with the 16 port switch.

 

Now I am asking for help how to configure the 24 port switch so the 16 port can plug into it and work as it did when plugged directly into the ROUTER.

 

 

  0  
  0  
#3
Options
Re:Help to configure ethernet for downstream switch
2025-06-06 00:55:14

  @Andrew_from_Oz 

Andrew_from_Oz wrote

  @Clive_A 

(Sorry not at you.)

 

I see/saw 4 notifications.

 

You (three times.  No worries) and .... MR.S?

(Sorry, I'm new here)

 

When I click on ANY of the reply notifications all I get to see is your ONE reply.

 

I'm confused.

 

Ok, to what you asked:

Isn't this the same as the other post?

 

well, yes - and no.

 

The first post was to get the 16 port switch set up with VLANS.

 

Got that working, and thanks.

 

So the next "step" is to connect it to the network.

 

As a "BASE LINE" I used a spare ethernet port form the EDGErouter and copied the "existing/working" one to the spare.

Then I plugged the switch in and it worked.

 

Nice.

 

But it would be nicer - cable wise - to not plug it in the ROUTER, but the existing 24 port switch I have.

(It is going to be an extension of the existing switch)

 

So, the existing switch has a TRUCK input and it's other 23 ports are VLAN'd out as needed.

What I want to do is make it 22, and the one I "stole" would become a ...... bridge (which I think is a better term) and an output (to call it) that goes to this 16 port switch.

 

Clearer?

 

Oh, ITMT, my local LAN has gone to h*ll in a hand basket and I am in damage control mode just now trying to get it working agian.

 

To clarify:

The first post was asking for help with the 16 port switch.

 

Now I am asking for help how to configure the 24 port switch so the 16 port can plug into it and work as it did when plugged directly into the ROUTER.

 

 

 

Trunk it and it will pass on to the 24-port SW and you can cascade 16-port and any switches. As long you move on, if you expect the VLAN to be passed on to the next, you gotta config VLAN(or Trunk).

 

About the system, when a message is edited, it will trigger another time notification as "someone mentioned you".

  0  
  0  
#4
Options
Re:Help to configure ethernet for downstream switch
2025-06-06 04:23:04 - last edited 2025-06-06 04:24:50

  @Clive_A 

Yes, referring back to your reply:

The TRUNK from the ROUTER to the 24 port switch is there and working.

 

That's fine.

 

I need help to set the 24 port switch so it "passes on" the TRUNK to the next (16 port) switch.

 

All things being good, it will then work, as it should see the same "input" as it (the 16 port switch) saw from the ROUTER when it was plugged directly into it.

(How I got it working.)

 

Clearer?

 

 

Oh and thanks for clearing up how the reply part works.

(Though I still can't say I've seen who this MR.S is who was mentioned as replying to one of my posts.)

 

  0  
  0  
#5
Options